Phase diagram of dense neutral three-flavor quark matter

Details Phase diagram of dense neutral three-flavor quark matter Phase diagram of dense neutral three-flavor quark matter

2004-05-18

arxiv.org/abs/hep-ph/0405170v2

Nucl.Phys.A743:127-146,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 11 figures, references added; the version accepted for publication in Nucl. Phys. A

Scientific paper

10.1016/j.nuclphysa.2004.07.008

We study the phase diagram of dense, locally neutral three-flavor quark matter as a function of the strange quark mass, the quark chemical potential, and the temperature, employing a general nine-parameter ansatz for the gap matrix. At zero temperature and small values of the strange quark mass, the ground state of matter corresponds to the color-flavor-locked (CFL) phase. At some critical value of the strange quark mass, this is replaced by the recently proposed gapless CFL (gCFL) phase. We also find several other phases, for instance, a metallic CFL (mCFL) phase, a so-called uSC phase where all colors of up quarks are paired, as well as the standard two-flavor color-superconducting (2SC) phase and the gapless 2SC (g2SC) phase.

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